Our observations are in line with results of other authors, who observed elevated levels of LPS, similar to florid sepsis occures in ultramarathon runners (Bosenberg et al. 1988; Walsh et al. 2011) and increase in serum I‐FABP level after high‐intensity exercise (Pugh et al. 2017; Sheahen et al. 2018). Here, FABP2 is linked to Sepsis.